Obviously Rihanna didn't invent or be the first one to rock a bob (Louise Brooks anyone?), but the "Rihanna haircut" was the most popular haircut in the world in 2007 after she did it. She was the one inspiring the masses, not VB (whom I love). It was massive.
I don't think anyone here really remembers how big it was because she's had so many hairstyles since then.
